Preparation method of anionic polymerization initiator, device for manufacturing anionic polymerization initiator and anionic polymerization initiator prepared therefrom

Abstract

A method for preparing an anionic polymerization initiator, a device for manufacturing the same, and an anionic polymerization initiator prepared therefrom is provided. And the method for preparing an anionic polymerization initiator according to the present invention is characterized in that in a continuous reactor an amine compound of Formula 1 and / or Formula 2; an organometallic compound; and / or a conjugated diene compound are introduced in the form of a solution and reacted.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]The present application is a national phase entry under 35 U.S.C. § 371 of International Application No. PCT / KR2016 / 008193 filed Jul. 27, 2016, which claims priority from Korean Patent Application No. 10-2015-0131451 filed Sep. 17, 2015, Korean Patent Application No. 10-2016-0040064 filed Apr. 1, 2016, and Korean Patent Application No. 10-2016-0040066 filed Apr. 1, 2016, all of which are incorporated herein by reference.TECHNICAL FIELD[0002]The present application relates to a method for preparing an anionic polymerization initiator, a device for manufacturing the same, and an anionic polymerization initiator prepared therefrom.BACKGROUND ART[0003]As physical properties of high-efficiency, environment-friendly and high-performance tires are required for reducing discharge of carbon dioxide and improving fuel economy, and the like, tire materials that meet such needs are actively being developed. Particularly, styrene-butadiene rubber obta...

AI Technical Summary

Benefits of technology

[0044]According to the present invention, by preparing an anionic polymerization initiator using a continuous reactor, it is possible to prevent instability and inactivation of the polymerization initiator and deterioration of the physical properties of the SSBR, to minimize the by-products and unreacted products, and to epochally improve the conversion rate of the polymerization initiator.

[0045]In addition, in the present invention, the polymerization initiator may be synthesized by a continuous polymerization reaction and then introduced into a polymerization tank simultaneously with raw materials of SSBR to prepare the SSBR, whereby problems such as deterioration of physical properties of the SSBR can be minimized, as well as the production of products having stable and constant quality can be allowed.

[0046]Furthermore, since the method for preparing an anionic polymerization initiator of the present invention has a higher yield while having a shorter reaction time over the batch-wise reactor, it is possible to exhibit excellent effects, such as being capable of reducing the preparation process time economically.

[0047]Also, due to high yield, economic efficiency and stable quality for mass production can be secured, as well as manufacturing process time can be significantly reduced.

Problems solved by technology

However, HMI-Li has a low solubility in a solvent to fall into precipitation over time and also has a problem that the reactivity is lower than that of BuLi, although it can be used as an initiator.

However, the modification initiator thus prepared is unstable over time and falls into precipitation, or is inactivated by bonding a very small amount of oxygen with water.

Therefore, the existing process of preparing the above polymerization initiator in a batch-wise manner and then introducing it into the polymerization reaction necessarily requires a storage step of the modification initiator, thereby bringing about the aforementioned disadvantages.

This may adversely affect the post-processes to be a factor for lowering physical properties of the finally synthesized SSBR, which makes it difficult to maintain a constant quality.

In the case of the former, the storage step of the modification initiator is necessarily required, and during the period of storing the already synthesized initiator its anions are reacted with various scavengers such as moisture and air and thus the initiator loses its activity.

This may adversely affect the post-processes to be a factor for lowering the physical properties of the finally synthesized SSBR, which makes it difficult to maintain a constant quality.

However, it is difficult to confirm whether the modification initiator is properly synthesized, and the physical properties are also deteriorated more than the case of adding the synthesized initiator.

In addition, in all the conventional batch-wise processes, by-products are produced while raw materials are directly introduced, mixed and reacted, or reverse reactions occur to generate unreacted products, and as a result, there is also a problem that a polymerization yield is lowered.

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